JAVA programming assignment

a)
Write an interactive program in JAVA using applet which input two numbers if different text boxes and sum of two numbers is displayed by giving an appropriate label. Explain how multiple inheritance can be achieved in JAVA.
b)
Write a JAVA program which shows the combo box contains three entries(C, C++, and JAVA), the selected entry is displayed in the text box.
c)
Write a JAVA program that defines an exception called "No Match Exception" that is thrown when a string is not equal to "India".
d)
Write a JAVA program to create a frame to handle mouse events and display x-point and y-point in a textbox when the mouse is moved on the window.Attachments